Why the Cox .049 Went Back in 1979 to the Crankcase That Failed It - The Greatest Tooling Secret

The Cox .049 crankcase was cut from aluminum bar in 1956, cast again in 1979, cut again in 1982 - and in the end it went back to the casting that had failed it. Nobody chose that last change. Almost every account of this engine stops at 1956: Cox gave up the mold for the bar, and the body got stronger and cheaper. That part is true. What those accounts leave out is that the same little part changed how it was made three more times, and that the machine behind the better body never made the trip when the company moved to Colorado. WATCH NEXT - THE FILM THIS ONE CORRECTS ► How a toy company machined to the accuracy of a wristwatch:    • Why Cox .049 Could Machine Parts with Micr...   MORE FROM THIS WORKBENCH ► The engine that holds compression with no piston rings:    • Why a Cox .049 Holds Compression With No P...   ► The engine that burns the same chemical as a dragster:    • Why a Cox .049 Burns the Same Chemical as ...   #cox049 #modelengine #thelastwhistle